论文标题
催化自我的理论建模
Theoretical modeling of catalytic self-propulsion
论文作者
论文摘要
自我销售的颗粒或微武者已经开放了一个新的研究领域，既有基本和实际观点。它们代表了用于主动物质实验研究的非常方便的模型对象，并且对纳米机器人，药物输送等有影响。在这里，我们总结了对催化微晶状体自我塑造的理论描述的最新进展，该催化微晶状体的释放，包括其物理起源，以及当前重点转换为非线性效应，几何调整等。特别是，我们表明，离子自我塑造始终包括弥漫性和电泳贡献，而非线性效应是许多有趣现象的物理原因，例如粒子运动在粒子运动的方向上反向响应盐浓度变化或盐浓度的变异或自我自我颗粒的自我颗粒。我们最终提出了该领域中剩余的一些理论挑战。
Self-propelling particles or microswimmers have opened a new field of investigation with both fundamental and practical perspectives. They represent very convenient model objects for experimental studies of active matter, and have implications in nano-robotics, drug delivery, and more. Here, we summarize recent advances in theoretical description of the self-propulsion of catalytic microswimmers that non-uniformly release ions, including its physical origins and the current switch in focus to non-linear effects, geometric tuning and more. In particular, we show that the ionic self-propulsion always includes both diffusiophoretic and electrophoretic contributions, and that non-linear effects are physical causes of a number of intriguing phenomena, such as the reverse in the direction of the particle motion in response to variations of the salt concentration or self-propulsion of electro-neutral particles. We finally suggest several remaining theoretical challenges in the field.
